The cable diagnosis system PD120-2 / PDTD120-2 consists of the following units:
HVA120 insulation tester (optional)
High voltage filter
Coupling capacitor (with integrated TD dignostics system)
b2 Suite® software for diagnostics and reporting
Set of cables and corona rings
The total weight for high voltage filter, coupling capacitor and calibrator is 59 kg. Thus the system is perfectly suitable for mobile use.
For the partial discharge test a sinusoidal 0.1 Hz VLF voltage is employed, adjustable over a range of up to 120 kV peak.
Measurement of the intensity of partial discharges versus time
Localization of faults by TDR (Time Domain Reflectometry)
Display of faults in the partial discharges mapping
Phase related depiction
Easy to use and language selection
The partial discharge test is documented in the form of a ready-to-use report, containing all relevant results:
Calibration Pulse (in accordance with IEC 60270) and end detection
Background noise of the measurement arrangement
Partial discharges inception voltage (PDIV)
Partial discharges level at 1.7 Vo
Partial discharges extinction voltage (PDEV)
A SINGLE cable diagnostics system for various applications:
Cables: XLPE, PE, PILC
Capacitors
Switchgear
Transformers
Rotating machines (IEEE 433)